Improvement in feed-water heater for steam-boilers



PATENTED SEPT. e, 1870.

1). oRD0 FEED WATER HEATER FOR STEAM BOILERS.

- rie z UNITED STATES PATENT OEEIoE.

DANIEL LORDON, OF MEMPHIS, TENNESSEE, ASSIGNOR TO HIMSELF AND JAMESSHIELDS, OF GRAND RAPIDS, MICHIGAN.

IMPROVEMENT IN FEED-WATER HEATER FOR STEAM-BOILERS.

Specification forming part of Letters Patent No. 107,185, datedSeptember 6, 1870.

I, DANIEL LORDON, of Memphis, Shelby County, Tennessee, have invented anew and useful Feed-WVater Heater for Steam-Boilers, of which thefollowing is a specification:

li a tm'c and Objects of the Invention.

My invention has for its object improvement in the class of feed-waterheaters in which a pipe is arranged to traverse the furnace-c mber,through which the water supplied to the boiler is fed by a force-pump.

My improvement consists in the arrangement of the coil or traversingfeed-pipe with a mud-drum in such a manner as to allow the water to passthrough the drum before entering the boiler, the drum answering thepurpose of a receptacle of the foreign matter contained in the water,and the pipe being ar-' ranged to aid in maintaining the circulation ofwater in one direction when the force-pump ceases action.

General Description with Reference to the Drawtng;

Figure 1 is a perspective representation ofthe feed-pipes and mud-drum.Fig. 2 is a side elevation of the same, together with a portion of theboiler, the furnace being in section.

I have selected to illustrate my invention an arrangement of feed-pipesadapted to a pair of ordinary horizontal boilers.

A represents a portion of an ordinary horizontal boiler; B, itsfire-chamber; C, the flue; D, the mud-drum. E is the feed-water pipefrom the doctor, F, a cylinder, in the chamber of which a check-valve,opening upward, is provided; G, a pipe emerging from said chambers upperpart, above its check-valve, and extending in the form of a coil, H,into the flue-space beneath theboiler or boilers, whence, emergingagain,it enters the bottom of a second chamber, I, from whose upper part apipe leads into the mud-drum. The end part, a, of the coil is madelarger than the part b of said pipe, which is turned upward in the drum,as shown in dotted lines.

It is desirable, in order to obtain the best results, that the part ashould enter the drum D at a lower point than the part b, and it is, infact, inserted in such a manner that its up-- per side is in the samehorizotal plane with that of the other part, b, and hence, it beinglonger, its under side is below that of b.

The cocks K and L are provided for the purpose of shutting offconnection of the coil with the boiler and drum when desirable ornecessary for sake of repairs or other purposes, and the cock L answersthe additional purpose of serving to cause the stream of water forced inby the doctor to traverse the coil preparatory to entering the drum. andboiler. A hot-water service-cock, M, may lead from a convenient part ofthe coil outside of the flue.

Operation.

. or doctor, as is liable to occur with those heaters which are situatedbeyond the pump. When the doctor is not in action the current of waterwill continue for a few minutes in the direction indicated by thearrows, this being due to the momentum acquired.

To maintain the current beyond the tim when mere momentum will no longeravail, I have curved the end of the part b upward, so that the streammay be delivered into one of the tubes connecting the drum and boiler,thus avoiding, in part, the reaction which would otherwise result fromthe water in the drum.

I desire to be understood as making no claim to the general arrangementof feed-coil.

Claim.

I claim- The particular arrangement, with the boiler, of the mud-drum D,coil G H, with parts a and b, the valve-chamber F, and cooks K and L,all constructed as shown and described.

In testimony of which invention I hereunto set my hand.

DANIEL LORDON.

Witnesses GEo. H. KNIGHT, JAMES H. LAYMAN.

